linux-kernel - [tip:core/locking] locking: Inline spinlock code for all locking variants on s390

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Message-ID: <tip-b62e180cae6bd82e246d871a1e44e03f8019d421@git.kernel.org>
Date:	Mon, 31 Aug 2009 17:08:33 GMT
From:	tip-bot for Heiko Carstens <heiko.carstens@...ibm.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...hat.com, torvalds@...ux-foundation.org,
	a.p.zijlstra@...llo.nl, schwidefsky@...ibm.com,
	ehrhardt@...ux.vnet.ibm.com, arnd@...db.de,
	akpm@...ux-foundation.org, heiko.carstens@...ibm.com,
	zippel@...ux-m68k.org, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, hpa@...or.com, paulus@...ba.org,
	horsth@...ux.vnet.ibm.com, davem@...emloft.net,
	benh@...nel.crashing.org, geert@...ux-m68k.org,
	linux-arch@...r.kernel.org, mingo@...e.hu, nickpiggin@...oo.com.au
Subject: [tip:core/locking] locking: Inline spinlock code for all locking variants on s390

Commit-ID:  b62e180cae6bd82e246d871a1e44e03f8019d421
Gitweb:     http://git.kernel.org/tip/b62e180cae6bd82e246d871a1e44e03f8019d421
Author:     Heiko Carstens <heiko.carstens@...ibm.com>
AuthorDate: Mon, 31 Aug 2009 14:43:39 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Mon, 31 Aug 2009 18:08:51 +0200

locking: Inline spinlock code for all locking variants on s390

Speeds up several benchmarks in a measurable way, so inline
all spin-lock variants by default.

Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Nick Piggin <nickpiggin@...oo.com.au>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Cc: Horst Hartmann <horsth@...ux.vnet.ibm.com>
Cc: Christian Ehrhardt <ehrhardt@...ux.vnet.ibm.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: David Miller <davem@...emloft.net>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: Roman Zippel <zippel@...ux-m68k.org>
Cc: <linux-arch@...r.kernel.org>
LKML-Reference: <20090831124419.319518405@...ibm.com>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 arch/s390/include/asm/spinlock.h |   29 +++++++++++++++++++++++++++++
 1 files changed, 29 insertions(+), 0 deletions(-)

diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index c9af0d1..41ce686 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -191,4 +191,33 @@ static inline int __raw_write_trylock(raw_rwlock_t *rw)
 #define _raw_read_relax(lock)	cpu_relax()
 #define _raw_write_relax(lock)	cpu_relax()
 
+#define __always_inline__spin_lock
+#define __always_inline__read_lock
+#define __always_inline__write_lock
+#define __always_inline__spin_lock_bh
+#define __always_inline__read_lock_bh
+#define __always_inline__write_lock_bh
+#define __always_inline__spin_lock_irq
+#define __always_inline__read_lock_irq
+#define __always_inline__write_lock_irq
+#define __always_inline__spin_lock_irqsave
+#define __always_inline__read_lock_irqsave
+#define __always_inline__write_lock_irqsave
+#define __always_inline__spin_trylock
+#define __always_inline__read_trylock
+#define __always_inline__write_trylock
+#define __always_inline__spin_trylock_bh
+#define __always_inline__spin_unlock
+#define __always_inline__read_unlock
+#define __always_inline__write_unlock
+#define __always_inline__spin_unlock_bh
+#define __always_inline__read_unlock_bh
+#define __always_inline__write_unlock_bh
+#define __always_inline__spin_unlock_irq
+#define __always_inline__read_unlock_irq
+#define __always_inline__write_unlock_irq
+#define __always_inline__spin_unlock_irqrestore
+#define __always_inline__read_unlock_irqrestore
+#define __always_inline__write_unlock_irqrestore
+
 #endif /* __ASM_SPINLOCK_H */
--
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